Segment Reporting (Tables)

6 Months Ended

Jun. 30, 2025

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, Reconcile to Net Income

The following table presents information about segment revenues, significant expenses and profits:

	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
	(In millions)
Revenues	$	409.9	$	387.1	$	812.2	$	771.4
Costs and expenses:
Compensation and benefits expenses	61.1		55.0		123.2		113.8
Stock-based compensation expenses	15.9		14.3		33.4		29.4
Equipment and software expenses	12.5		11.1		24.5		22.0
Registry fee expenses	11.8		11.0		23.4		22.5
Depreciation expenses	8.3		9.3		17.2		19.1
Other segment items	19.6		20.2		38.6		39.5
Total costs and expenses	129.2		120.9		260.3		246.3
Operating Income	280.7		266.2		551.9		525.1
Interest expense	(18.9)		(18.8)		(39.2)		(37.6)
Non-operating income, net	5.5		11.5		13.0		25.4
Income tax expense	(59.9)		(60.1)		(119.0)		(120.0)
Net income	$	207.4	$	198.8	$	406.7	$	392.9